Thanks for friendship request

Nah, Im not really smart.

Its kinda hard to explain how I give them meaning but you can try to:

look for math gems:
http://namshub.netii.net/test/MathGems.pdf

analyze every symbol in the formula:
https://wiki2.org/en/List_of_mathematical_symbols

and finally, use your intuition;
how does this symbol relate to real life?